Instep-coupler for pedal

ABSTRACT

An instep-coupler is made from the bending of a tough cylindrical rod with threading at two ends. Said bending resulted in two parallel bases, two posts continue with said bases, and an instep-contact continue with said two posts. There are two different types of bases designed to insert into two different types of host pedals. Bases ( 13   a ) and ( 13   b ) are designed to insert into host pedal ( 80 ), and bases ( 11   a ) and ( 11   b ) are designed to insert into host pedal ( 81 ). Said posts can be parallel or not parallel, can be equal or not equal in length, and raise said instep-contact to a certain height above the host pedal that the bases are attached to with hex nuts. Said instep-contact bend with respect to said two posts and reaches out in a U-shape above said host pedal just far enough to provide a cover for the peak slope of an instep.

CROSS-REFERENCE TO RELATED APPLICATION

This application claims the benefit of provisional patent application Ser. No. 60/878,482, filed 2007 Jan. 3 by the present inventor.

FEDERALLY SPONSORED RESEARCH

Not Applicable

SEQUENCE LISTING OR PROGRAM

Not Applicable

BACKGROUND OF THE INVENTION

1. Field of Invention

This invention is made from the bending of a tough cylindrical rod with threading at two ends, designed to secure onto a pedal that is designed to receive an instep-coupler attachment.

2. Prior Art

The basic way to pedal a bicycle is to use sole to push down onto a pedal. Currently there are special pedals that allow people to pull in addition to push using their foot. These special pedals include pedal with strap, pedal with strap and toe clip, and step-in or clipless pedal (pedals that required special shoes for engagement). However, many people choose not to use these special pedals in riding a bicycle. The reasons could be any of the following:

-   -   a) people do not feel confident enough that once their foot is         secure onto one of said special pedal they can disengage said         special pedals fast enough during an emergency to avoid an         accident.     -   b) pedals that require special shoes to operate are expensive         and not user friendly.

3. Objects and Advantages

My invention is a very simple device, very easy and inexpensive to manufacture, just a couple of bending on a tough cylindrical rod that has threading at both ends; I call it instep-coupler for pedal, because it is designed to attach to a pedal designed specifically to host an instep-coupler attachment. Once an instep-coupler is secured onto a host pedal and the host pedal is installed onto a bicycle's crank-arm user can push the pedal using their sole or pull the pedal using their instep on the instep-coupler. The objects and advantages of my invention when attached to an appropriate host pedal over prior arts are as follow:

-   -   a) provide a lot of freedom for people to quickly and easily         engage and disengage the instep-coupler and the host pedal in         bicycle riding,     -   b) no special shoes is required, simply ware your favorite         sneaker,     -   c) allow user number of ways to use my invention. User can         choose either to step on the side of the pedal with their instep         fully engage, not engage, or partially engage with the         instep-coupler; or simply step on the opposite side of the pedal         and allow the bicycle to pick up the speed first at the initial         stage of bike riding and engage their instep with the         instep-coupler later on and,     -   d) can be use in indoor cycling bikes as well, user will get the         benefit of quick release whenever they like.

SUMMARY

An instep-coupler is designed to secure onto a pedal that designed to receive a particular instep-coupler attachment. Such a pedal is described in detail in my different patent called “Two-purpose-pedal”, patent number: ______.

Instep-coupler can have many different shapes and sizes, but the instep-couplers described here comes in two different types of bases that designed to attach onto two different types of host pedals, host pedal 80 and host pedal 81. Instep-couplers 90, 93, and 94 are one type of instep-couplers that have their bases bent perpendicular with respect to their posts, designed to attach a type of host pedal similar to host pedal 80. Instep-couplers 91 and 92 are another type of instep-couplers that have their bases and posts located on one single plane, designed to attach to a type of host pedal similar to host pedal 81.

An instep-coupler is made from the bending of a tough cylindrical rod having the diameter about the size of a small or medium lateral cross-section of a chop-stick with threading at two ends. Said bending creates two bases, two posts, and an instep-contact. Said two bases are the portions of two ends, designed to insert into the body of a particular host pedal and secure by hex nuts. Said two posts continue with said two bases can be parallel or not parallel, equal or not equal in length, and raise said instep-contact to a certain height above said host pedal. Said instep-contact bend with respect to said two posts above said host pedal, reaches up to 40 millimeter away from said two posts in a U-shape, or reaches just far enough to provide a cover for the natural peak slope of an instep.

DRAWING—FIGURES

FIG. 1A, exploded view on how to attach first embodiment to host pedal 80

FIG. 1B, perspective view on first embodiment secured onto host pedal 80

FIG. 1C, perspective view on first embodiment

FIG. 1D, side view on first embodiment

FIG. 2A, exploded view on how to attach second embodiment to host pedal 81

FIG. 2B, back upper perspective view on second embodiment secured onto a host pedal 81

FIG. 2C, back lower perspective view on second embodiment secured onto a host pedal 81

FIG. 2D, side view on second embodiment

FIG. 2E, front view on second embodiment

FIG. 3A, front view on third embodiment

FIG. 3B, perspective view on third embodiment

FIG. 3C, side view on third embodiment

FIG. 4A, perspective view on forth embodiment

FIG. 4B, side view on forth embodiment

FIG. 5A, perspective view on fifth embodiment

FIG. 5B, side view on fifth embodiment

DRAWINGS—REFERENCE NUMERALS

-   (1 a, 1 b, 1 c, 1 d) are the hex nuts. -   (2 a and 2 b) are the washers. -   (5 a, 5 b, 6 a and 6 b) are the holes -   (11 a and 11 b) are the vertical bases -   (12 a and 12 b) are the threading -   (13 a and 13 b) are the bases -   (14 a and 14 b) are the posts -   (15 a and 15 b) are the curves, also the members of instep-contact -   (16 a, 17 a, 18, 17 b, and 16 b) formed a shape call U-shape, also     the member of instep-contact -   (15 a, 15 b, 16 a, 16 b, 17 a, 17 b and 18) formed a shape call     instep-contact -   80 is the host pedal or two-purpose-pedal -   81 is the host pedal or two-purpose-pedal -   90 is the first embodiment of instep-coupler -   91 is the second embodiment of instep-coupler -   92 is the third embodiment of instep-coupler -   93 is the forth embodiment of instep-coupler

DETAILED DESCRIPTION—FIG. 1A, 1B, 1C, 1D—FIRST EMBODIMENT

FIG. 1A is an exploded view on how to install instep-coupler 90 to host pedal 80. Host pedal 80 is a pedal designed to receive an instep-coupler attachment similar to instep-coupler 90 that has its parallel bases (13 a and 13 b) bend perpendicular to its posts (14 a and 14 b) respectively. For more information on host pedals that design to receive instep-coupler attachment please refer to my different patent name “Two-purpose-pedal”, patent number:

FIG. 1A shows threading (12 a and 12 b) of instep-coupler 90 lineup at the back end of host pedal 80, pointing at holes (5 a and 6 a) and holes (5 b and 6 b) respectively, ready to insert into of host pedal 80; and washers (2 a and 2 b) and hex nuts (1 a and 1 b) are lineup at the front end of host pedal 80 ready to secure onto threading (12 a and 12 b) when emerges from holes (5 b and 6 b).

FIG. 1B shows instep-coupler 90 is fully secured onto host pedal 80. The lengths of bases (13 a and 13 b) of instep-coupler 90 are 77 mm from posts (14 a and 14 b), just long enough for washers (2 a and 2 b) and hex nuts (1a and 1 b) to lock on to threading (12 a and 12 b) that emerge from holes (5 b and 5 b). Notice, posts (14 a and 14 b) and instep-contact (15 a, 15 b, 16 a, 16 b 17 a, 17 b and 18) are slanted away from the center of host pedal 80. This is because post 14 a is shorter than post 14 b by 16 mm as shown in the side view of FIG. 1D. When instep-coupler 90 is inserted onto host pedal 80 as shown in FIG. 1B instep-contact (15 a, 15 b, 16 a, 16 b 17 a, 17 b and 18) will tilt at an angle that closely matches the natural peak slope of a normal person's right instep. This embodiment can also present itself as a mirror image of instep-coupler 90. The mirror image of instep-coupler 90 is intended to install on a left host pedal and operate by a left human foot.

FIGS. 1A, 1C and 1D shows instep-coupler 90 has four important structures: threading (12 a and 12 b), bases (13 a and 13 b), posts (14 a and 14 b), and instep-contact (15 a, 15 b, 16 a, 16 b, 17 a, 17 b, and 18). Said bases are straight, parallel, and equal in length. The distance between the central axes of base 13 a and base 13 b is 43 mm. FIG. 1D shows that posts (14 a and 14 b) are straight, parallel, and not equal in length, and bend sharply perpendicular to bases (13 a and 13 b) respectively. Post 14 a is shorter than post 14 b by 16 millimeters. The distance between the central axes of said posts is 40 mm. Posts (14 a and 14 b) continue with curves (15 a and 15 b), and curves (15 a and 15 b) continue with members (16 a and 16 b) respectively. Curves (15 a and 15 b) bent in two separate quarter circles with radius of 30 mm, in the direction that bases (13 a and 13 b) are pointing, and maintain 40 mm apart from their central axes. Curves (15 a and 15 b) create smooth transitions between posts (14 a and 14 b) and U-shape (16 a, 17 a, 18, 17 b, and 16 b). The purpose of the smooth transition created by said curves is to maximize the contact with biker's instep. Instep-contact (15 a, 15 b, 16 a, 16 b, 17 a, 17 b, and 18) reaches out to cover 40 mm away from posts (14 a and 14 b). The distance between base 13 a and member 16 a is 73 mm, and the distance between base 13 b and member 16 b is 89 mm. The diameter of the cylindrical rod used to make instep-coupler 90 can be 6 mm, 3/16 of an inch, ¼ of an inch, or any in between. The material use is alloy steel.

DETAILED DESCRIPTION—FIGS. 2A, 2B, 2C, 2D, 2E—SECOND EMBODIMENT

FIG. 2A shows instep-coupler 91 has lineup its vertical bases (11 a and 11 b) and ready to insert into holes (7 a and 7 a) on host pedal 81. Said vertical bases are populated with threading and designed to insert into a host pedal similar to host pedal 81 that has holes (7 a and 7 b) locate near the back end of the pedal, perpendicular to the pedal and pedal shaft, and sandwich the pedal shaft in the middle.

FIG. 2A shows four hex nuts (1 a, 1 b, 1 c, and 1 d) lineup at the top and bottom of pedal 81 and prepare to lock onto the threading of vertical bases (11 a and 11 b) that enters into holes (7 a and 7 b) to prevent instep-coupler 91 from slide either up or down. FIGS. 2B and 2C show instep-coupler 91 is fully secured onto host pedal 81 by said hex nuts. Said threading populates 24.5 millimeters along the length of vertical bases (11 a and 11 b). Washer can be added on top of hex nuts (1 a and 1 b) to ensure/improve stability.

From the perspective of FIG. 2D or FIG. 2E the length of the smallest rectangle that contains instep-coupler 91 is 112 mm. Bases (11 a and 11 b) are equal in length, continue with posts (14 a and 14 b) respectively without bending. Post 14 a is shorter than post 14 b by 11.5 mm. The distance between the central axes of said posts is 43 mm, and their diameter is 6 mm. Posts (14 a and 14 b) continue with curves (15 a and 15 b) respectively. Curves (15 a and 15 b) bend in two separate quarter circles with radius of 30 mm, at a direction that is perpendicular to a plane that the central axes of posts (14 a and 14 b) lay. Curves (15 a and 15 b) create smooth connection from posts (14 a and 14 b) to U-shape (16 a, 17 a, 18, 17 b, and 16 b). Instep-contact (15 a, 15 b, 16 a, 16 b, 17 a, 17 b, and 18) reaches out to cover 40 mm away from posts (14 a and 14 b). From the perspective of FIG. 2E, member 18 is 105 degree with respect to post 14 a and 75 degree with respect to post 14 b. Thus, instep contact (15 a, 15 b, 16 a, 16 b, 17 a, 17 b, and 18) is not symmetrical and aim to match natural peak slope of a normal person's right instep. Therefore instep-coupler 91 is intended to install on a right host-pedal similar to host pedal 81 and operate by a right foot. This embodiment can also present itself as a mirror image of instep-coupler 91. The mirror image of instep-coupler 91 is intended to install on a left host pedal similar to host pedal 81 and operate by a left foot.

DETAILED DESCRIPTION—FIGS. 3A, 3B, 3C—THIRD EMBODIMENT

Similar to second embodiment, instep-coupler 92 is designed to attach to a right host pedal similar to host pedal 81. This embodiment can also present itself as a mirror image of instep-coupler 92 for install onto a left host pedal similar to host pedal 81.

FIGS. 3A, 3B and 3C show instep-coupler 92 bends differently from the second embodiment to conform to the natural peak slope of a normal person's right instep. From the perspective of FIG. 3A, the length of the smallest rectangle that contains instep-coupler 92 is 110 mm. Posts (14 a and 14 b) bend 155 degree with respect to bases (11 a and 11 b) respectively. Posts (14 a and 14 b) and bases (11 a and 11 b) are lying on one single plane. Taking the measurement from the central axis, vertical base 11 a is 33.5 mm, vertical base 11 b is 43 mm, post 14 a is 60 mm, and post 14 b is 70 mm. Vertical bases (11 a and 11 b) are parallel to each other; their central axes are 43 mm apart. Posts (14 a and 14 b) are parallel to each other; their central axes are 43 mm apart, and they continue with curves (15 a and 15 b). Curves (15 a and 15 b) bend in two separate quarter circles with radius of 30 mm, parallel to each other, 43 millimeters apart from their central axes, and bend to a direction that is perpendicular to a plane that the central axes of posts (14 a and 14 b) lay. Finally, U-shape (16 a, 17 a, 18, 17 b, and 16 b) continue with curves (15 a and 15 b); their combination is called instep-contact (15 a, 15 b, 16 a, 16 b, 17 a, 17 b, and 18). Said instep-contact reaches up to 40 mm from posts (14 a and 14 b), providing a cover for the natural peak slope of a normal person's right instep.

DETAILED DESCRIPTION—FIGS. 4A, 4B—FOURTH EMBODIMENT

Instep-coupler 93 is designed to attach to a right host pedal similar to host pedal 80 mentioned in the first embodiment. This embodiment can also present itself as a mirror image of instep-coupler 93 for install onto a left host pedal similar to host pedal 80.

Instep-coupler 93 bends differently from the first embodiment to conform to the natural peak slope of a normal person's right instep. Bases (13 a and 13 b) are parallel, equal in length and perpendicular to posts (14 a and 14 b) respectively. Posts (14 a and 14 b) are 29 degree with respect to each other. When instep-coupler 93 inserted onto host pedal 80, post 14 b is perpendicular to host pedal 80. Curves (15 a and 15 b) continue with posts (14 a and 14 b) bend in two separate quarter circles with radius of 30 mm, in a direction that bases (13 a and 13 b) are pointing. U-shape (16 a, 17 a, 18, 17 b, and 16 b) continue with curves (15 a and 15 b) tilted at an angle that is 18 degree with respect to host pedal 80 when instep-coupler 93 is inserted into host pedal 80, or 72 degree with respect to post 14 b. Finally, instep-contact (15 b, 15 b, 16 a, 16 b, 17 a, 17 b, and 18) reaches up to 40 mm from posts (14 a and 14 b) providing a cover for the natural peak slope of a right instep.

DETAILED DESCRIPTION—FIGS. 5A, 5B—FIFTH EMBODIMENT

Instep-coupler 94 is actually a variation of instep-coupler 90. Both instep-couplers have almost identical features except the radius of curves (15 a and 15 b) are different. By changing the radius of curve (15 a and 15 b) on instep-coupler 90 from 30 mm to 13 mm while maintaining their immediate neighbor's tangent relationship we will obtain instep-coupler 94.

Operation

Once a bicycle is installed with two host pedal that has instep-coupler attached, there are number of ways a user can choose how he/she likes to use it. To start, riding the bicycle I personally prefer to have one foot (the left foot for example) fully engage the instep-contact first while the other foot (the right foot) is on the solid ground before put the bicycle in motion. The right pedal usually has the instep-contact facing the ground because of gravity. To start put the bicycle motion I would use the right foot pushes down onto the right pedal, the side of the pedal naturally facing the sky because of the gravity. When the bicycle is at a stable speed I would flip the right pedal over using the right foot and sly the right instep under the instep-contact to engage the instep-coupler.

Moreover, user can choose how much their instep be cover under the instep-contact by position their sole differently under the instep-contact, so as to fully engage, partially engage, or not engage their instep with the instep-coupler.

Disengaging the foot from the instep-coupler is very easy. At least there are 90 degrees of freedom to pull your foot away from the pedal and the instep-coupler.

Conclusion, Ramifications, and Scope

While the above description contains many specificities, these should not be construed as limitations on the scope of the invention, but as exemplification of the presently preferred embodiments thereof. Many other ramifications and variations are possible within the teachings of the invention. For example, an instep-coupler could be in many different shapes and sizes, and it could be symmetrical or asymmetrical. Its bases are designed to attach to a particular host pedal that dose not limit to host pedals shown in the drawings. The bases doses not have to be equal in length, parallel, or have to have threading as described in the specification. As long as the bases have the mean to secure on to a particular host pedal and allow the instep-contact to do its job the bases are valid bases. Also the material use for the instep-coupler dose not have to be alloy steel, it can be anything that is tough, strong, dose not break easily, and not yield easily in normal usage. Thus the scope of the invention should be determined by the appended claims and their legal equivalents, and not by the examples given. 

1. An instep-coupler is made from the bending of a tough cylindrical rod with a diameter about the size of a small or medium size chop-stick; said bending resulted in two bases, two posts, and an instep-contact; said two bases are two ends of said cylindrical rod designed to attach to the body of a pedal that is designed to receive said instep-coupler attachment; said two posts continue with said two bases, when said instep-coupler attached its two bases to said body of said pedal said two posts emerges from said pedal in the direction that is perpendicular to the shaft of said pedal, said emerges is from the part of the pedal body that would be very close to a crank arm when said pedal is attach to a crank-arm; when said two posts of said cylindrical rod reaches to certain height above said pedal it bends away from said crank-arm creating said instep-contact above said pedal; said instep-contact reaches out just far enough from said two posts providing a cover for the peak slope of an instep, whereby user can easily sandwich their foot between said pedal and said instep-contact to achieve the push and pull pedaling mechanism in cycling using their sole to push on said pedal and their instep to pull on said instep-contact of said instep-coupler.
 2. The instep-coupler of claim 1 wherein said two bases has threading at their ends.
 3. The instep-coupler of claim 1 wherein said tough cylindrical rod is made from alloy steel.
 4. The instep-coupler of claim 1 wherein said two posts are parallel.
 5. The instep-coupler of claim 1 wherein said two posts aren't parallel.
 6. The instep-coupler of claim 1 wherein said two bases are parallel.
 7. The instep-coupler of claim 1 wherein said two bases aren't parallel.
 8. The instep-coupler of claim 1 wherein said two bases are bent 90 degree with respect to said two posts.
 9. The instep-coupler of claim 1 wherein said two bases continue with said two posts without bending.
 10. The instep-coupler of claim 1 wherein said two bases' central axes and said two posts' central axes are on one single plane, but said posts and said bases are not collinear.
 11. The instep-coupler of claim 1 wherein said instep-contact end in a U-shape.
 12. The instep-coupler of claim 1 wherein said instep-contact reaches out from said two posts to provide minimum cover for said peak slope of said instep.
 13. The instep-coupler of claim 1 wherein said instep-contact reaches out from said two posts to provide sufficient cover for said peak slope of said instep.
 14. The instep-coupler of claim 1 wherein said two posts are equal in length.
 15. The instep-coupler of claim 1 wherein said two posts aren't equal in length.
 16. The instep-coupler of claim 1 wherein said two bases are equal in length.
 17. The instep-coupler of claim 1 wherein said two bases aren't equal in length. 